| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 2 | |
| #2 | Norway | 2 | |
| #3 | Australia | 1 | |
| #4 | Belgium | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | Germany | 1 | |
| #8 | Denmark | 1 | |
| #9 | Spain | 1 | |
| #10 | France | 1 | |
| #11 | United Kingdom | 1 | |
| #12 | Hong Kong | 1 | |
| #13 | Ireland | 1 | |
| #14 | Italy | 1 | |
| #15 | Japan | 1 | |
| #16 | Sweden | 1 | |
| #17 | United States | 1 | |
| #18 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Water treatment | |
| #2 | Separating solids using liquids | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stokes J H | 3 |
| #2 | Stokes J | 2 |
| #3 | Cousins A G | 2 |
| #4 | Cousins A | 2 |
| #5 | Meyer F | 2 |
| #6 | Long C | 2 |
| #7 | Cousins Alexander Gibb | 1 |
| #8 | Lake V | 1 |
| #9 | Gibb A | 1 |
| #10 | Stokes John Herbert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA7205271B | Treatment of sewage | |
| GB1396878A | Treatment of sewage |